Thanks found it now, couldn't see it for looking!
So my details are:-
Device part no. 5QA035858
Hardware: H24
Software: 0241
Am I right in thinking I've a mib2 and can update using the Spanish site as per posts earlier on in this thread?
Do I need to purchase a tool to clear the error codes and if so what does everyone recommend?
Yep, as the post above says, you have a MIB2. I'm ready to upgrade mine, but have been waiting to find someone with an OBDeleven Pro.... just found out a friend at work has one! Just follow the Spanish site. Last time I looked, the links to the two update files showed a few errors, but keep going and you'll get to the 'download anyway' message.
Have a look at these two, they are two different videos for each upgrade stage: